Fanning mill



H. A. STEIN;

FANNING MILL.

APPLICATION FILED JULY 21 Patented May 23, 1922.

INVENTUR [YA J WITNESSES A non/ms UNITED STATES PATENT eth cs.

HERMAN -A. 'SZH EIN; O F GEORGETOWN, MINNESOTA.

'F'AIKTNING MILL.

Specification of'Letters Patent.

1%.1te nted MR-y23, 1922.

Amilicatien filed J1i1y-21, 1921. Serial No. 486,3ii5.

T all whom it may CQZ'ZK'GTMJ Be it known that I, HER A T UR srnm acitizend f the United States, and a resident of (jleorgetown "in the county of Clay and .State'ef'Minnesota, have invented a new and Improved Fanning Milh'ei which the following is a full, clear' an d exact clesc-ription.

This invention relates to a fanning mill for use in eleaning grain.

The Object (if this invention is toxprovide a graincleaner which may beaclapted t0 the cleaning of fall ordinary grains by the changing. of sieves. V

- A further object isto censtructe machine which cleans the grain in'stages and which has a larger screening ereathan 'is generally used sons 'to give more 'perfecteleaning.

This Object is accomplished by first passing the'grziin through 'a griting against an air blzistancl providing means forc-arrying away all dirt separzite'd' from thegm'in, then passing-the grain oifera ph relity of Offerlappingsleves egalnst {which an eirhl'ast 1S -d1rected,-'and finally over a screen.

The invention will be more "clearly unden stood in 'the following detailed lescriptie and ee cempinying *clr'awi'n'g's. v

Figure 1 is -'a{ side elevation of the fe'nmng mill; I

Figure 2 1s a vert1cal cross seetlon';

Figure 3 shc'wsthe lever {fen-operating the atl-justable feed hoard;

Figiire' i is 2i sectidn a10ng*the line 4:'4 of Figure 2; and

Figure '5 -is a perspective View of the car- Tier and the tighteni means;

Referring to the :iloov'e-r'nelition'ed figurest the fri me 10 carries aihopp'e'r 11 and a 'fan casing 12. Mounted infthe fan casing is a shaft 13 whicih'is fixede 'fa n 14. Lode-ted fh'elow the hopper 11 "is a *feed heard '16 having a r'0'c l 20 fixed t9 the end, Co o'pere'ting with the iced b'oaird T6 9316 serving to "adjust it is a wire lever '17. The lever 17 'h'as 'a ortion 20 bent alt r-ight angles to the lever am "and extending through an 0'pe'ning 18 in the side hoard ofthe fannin mill. The opening 18 serves as 'a hearing in which the portion 20 rotates as the lever arm is operated. 'On the e'ncl-o'flthe q ortien'20 is a ioniz d membe 19 fitting over the feed Board '16 'etncl'whi'ch m'ay be fixed to it in an m n 'ner such as riveting; The amou t efg ra ln entering {the mill may be regulated by tifltthe feed 1069;111- fihrdiigh the *operetion of the lever 17. Mo intedon 'the'en'el heard 0f the hopper is a b'iaek'et 2 1 'whichhas a number of notches therein into which the lever 17 fits and which serves to retainthe lever in any'cles'ireclpositidn.

A force fee'chreller 15 is ret'zitehly meiintfecl just belo the openi gi i-thehopper; "Fixed t0 the hopper support an'clflcceted heloiij the feed roller 15 is a "fork jinemberco nsistiiig "of grating roels 22. iGe-epe'rdting the grzitingmecls 22 is a sp'd'iit' 5 5 incl/a {carrier '23 turnedbyinezins of' rdllers24 511C125, In eo'njiinctidn with roller 25 {means "for tightening the carrier zire pro-vide'cl. This tighten- -ingmeans censist sof stepped, ii'e n's 26 which '-a1 e titt'ach ed to theenl's o-fthe siile boeirtls by means'of screws -2 9; These members 2'6hai e openings in one *entl through ii h'ich eyehelts ey eh'olts and thumb muses engage with the carrier be'It'QB. I

A- sh'ake r 30 'ha's0n'e end siip150rted by means of hangers 31 which are con'ri'efct'ed with "the frame at "82. The ether end of ev'eb'olts and m be used feritigi eii iig wile the shaker so is capeiea by members 33 pivotecl to it at '34. These members 33 are s ipperted by fifa'm'e 10 to" which they are suitable sieves are "ins'ertel in the shaker 30.

Thus it is seen for different grai'ne diifei ent combinations of sieves are selected. A screen-395s mounte d i -n the shelter-36 fF-i-Xed to the bottom of the shaker '30 isa 'screenings slide '40, The bottom of the shaker '30g -is cut o fl' at 41170 'ejl'lowthmgrain to drop into theshake'r '36. v

A p'ulley44v ha'ving an eccentric piniis mounted 'on the shaft 13. This ec'centric pin is connected to a projection45 =en0ne of the members 33 "by means "of 12L connectin g Mod 50. ltwill be'seen that the rotationyofshaft 13 will, serve to' OPeraLte'the sha kers 30 and 36.

Co-'(iperetin'g with the fan easing 1'2 'is'a door 42 "which may be rotsited emit Shaft a grain by means of the grating rods 22 and are sprocket wheel 48 13 to open the casing to allow air to be drawn in upon the rotation of the fan. This door may be fixed in any position by means of a thumb nut 43. Two flues 58 and 59 are provided in conjunction with the fan casing 12. The flue 58 directs an air blast along the carrier23, while flue 59 directs an air blast underneath the sieves 38. A key 57 is provided in flue 59 to control the air blast passing therethrough.

A small sprocket wheel 54 is fixed to the shaft 13. A large sprocket wheel 48 is mounted on the shaft of the feed roller 15 and mounted on roller 24 is a pulley 47 The is connected to the sprocket wheel 54 by means of a chain 49. The pulley 47 mounted on the roller 24 is connected by .means of a crossed belt 51 to a small pulley 52 mounted on the shaft 13. When it is desired to operate the fanning mill by hand a crank 53 is fixed to the shaft of the force feed roller 15. If it is desired to operate the fanning mill by a power drive the sprocket wheels 48 and 52 are removed along with the chain 49. A pulley of the proper size is then mounted on the shaft 13 and this pulley is driven direct from the power drive. A small pulley is mounted on the shaft of the force feed roller 15 and is connected by means of a crossed belt with the pulley 47 fixed to the roller 24.

The operation of the machine is as'follows:

The grain to be cleaned is thrown into the hopper 11 and the crank 53 turned. As the force feed roller 15 is rotated its rotary motion is conveyed through sprocket wheel 48, chain 49 and sprocket wheel 54 to the shaft 13, thus operating the fan. The pulley 52 which is mounted on the shaft 13 rotates with it, and through the crossed belt 51 rotates the pulley 47 driving the roller 24. It will be seen that the roller 24 rotates in the opposite direction to the force feed roller 15. The rotation of the shaft 13 rotates the pulley 44 on which is mounted the eccentric pin 46 and thus by means of the rod 50 which is connected to the member 33 the shakers 30 and 36 are operated.

As the fan 14 is rotated it creates an air blast. This air blast may pass through the flues 58 or 59. The strength of the air blast can be controlled by the operation of the door 42. The current of air passing through flue 59 can be controlled by means of key 57.

The grain in hopper 11 is drawn down by means of force feed roller 15 and drops through the grating rods 22 against the air blast directed along the carrier by flue 58. All large pieces of dirt are removed from the carried into the spout 55 by the carrier 23. Chafl" and light pieces of dirt are blown into the spout 55 by means of the air blast passing through the flue 58. The amount of grain that passes down into the machine may be controlled by means of the feed board 16 which is operated by the lever 17. The grain, due to its weight, slides down the carrier 23 and upon the sieves 38 and as it passes over the sieves all small seeds drop through them and are carried away by slide 40. The air blast passing through flue 59 blows out of the machine all chafl and light dirt that may be in the grain when it reaches sieves 38. Next, the grain passes onto the screen 39 carried by the shaker 36, and here the final screening takes place and the grain is passed out of the machine.

Claims:

1. A grain cleaner comprising a feed roller, a plurality of grating rods located below the feed roller, a fan for creating an air blast and a flue for directing it up through the forks, a carrier co-operating with the forks to carry the dirt out of the machine, a plurality of overlapping sieves carried by a shaker positioned below said carrier, and a second flue for directing an air blast through them.

2. A grain cleaner, comprising a frame, a

hopper and a feed roller mounted on the frame, a grating located below said feed roller, a carrier and slide provided in conjunction with the grating for carrying off the coarser dirt stopped by the grating, a fan for creating an air blast co-operating with the carrier and grating to blow off the grain the finer dirt, a plurality of removable sieves carried by the shaker located below said carrier and means for passing a regulable air blast through them, means for operating the fan, and means connecting the fan to the carrier, feed roller and shaker to operate them.

A grain cleaner comprising a fan shaft and a fan mounted thereon, a feed roller connected to said fan shaft, a fork located below the feed roller, a carrier driven by the force feed roller shaft co-operating with the fork to remove the coarser dirt, a flue for directing an air blast along the carrier and up through the fork for blowing the finer dirt, a plurality of shakers, operated from the fan shaft, supported beneath'the carrier, a plurality of sieves removably fastened in the top shaker and aflue for di recting a'regulable air blast through them.

4. A grain cleaner comprisin a frame, a hopper and fan casing carried by the frame, a door for controlling the amount of air entering the casing, a feed roller located below the hopper, a fork supported beneath the feed roller, a carrier and slide co-operating with the fork to remove the coarser dirt caught by them, a fan mounted in the fan casing 'to create an air blast, a flue for directing the air blast up through the fork, a plurality of shakers supported by the frame, a series of sieves removably fastened in the top shaker a second flue for directblast.

5. A grain cleaner comprising a frame;

a hopper carried by the frame, an adjustable feed board co -operating with the hopper, a lever connected to the feed. board for adjusting it. a feed roller arranged adjacent the feed board a fork located below the feed roller, a carrier cooperating with the fork operated by the rotation of the feed roller, a fan for creating an air blast and a flue for directing it up through the fork, a pair of shakers operated from the feed roller shaft, a plurality of sieves removably fastened in the top shaker and a flue for directing an airblast through c them.

6. As a new article of manufactui 'e,.a

7 grain cleaner comprising a feed roller, a

grating located below the feed roller, a carrier co-operating with the grating to remove dirt and to delay the progress of the grain to the sieves, a fan'for creating an air blast and a flue in conjunction therewith for directing the air blast against the grain as it enters the machine, a plurality of overlapping sieves located below the grating, a second flue co-operating'with the fan to clirect an air blast up through the sieves, and means for controlling the air blasts through both fiues.

HERMAN A. STEIN. 

